1-- C45532J.ADA 2 3-- Grant of Unlimited Rights 4-- 5-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687, 6-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained 7-- unlimited rights in the software and documentation contained herein. 8-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making 9-- this public release, the Government intends to confer upon all 10-- recipients unlimited rights equal to those held by the Government. 11-- These rights include rights to use, duplicate, release or disclose the 12-- released technical data and computer software in whole or in part, in 13-- any manner and for any purpose whatsoever, and to have or permit others 14-- to do so. 15-- 16-- DISCLAIMER 17-- 18-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR 19-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED 20-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE 21-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE 22-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A 23-- PARTICULAR PURPOSE OF SAID MATERIAL. 24--* 25-- OBJECTIVE: 26-- CHECK THAT THE OPERATOR "/" PRODUCES CORRECT RESULTS 27-- FOR FIXED POINT TYPES USING 3 SUBTESTS. 28-- THIS TEST REQUIRES MIN_WORD_LENGTH = 32. 29-- THIS TEST USES VALUES OF DELTA WHICH ARE LESS THAN 0.5. 30-- 31-- TEST CASES ARE: 32-- A) THE OPERATOR /, A, B, AND A / B ALL MODEL NUMBERS. 33-- B) THE OPERATOR /, A, B MODEL NUMBERS A / B NOT. 34-- C) THE OPERATOR /, USING NO MODEL NUMBERS. 35-- 36-- REPEAT FOR MINIMUM REQUIRED WORD LENGTHS OF 12, 16, 32 AND 48, 37-- WITH RANGE <, =, AND > THAN 1.0 AND 38-- WITH DELTA <, =, AND > THAN 1.0. 39 40 41-- HISTORY: 42-- NTW 09/08/86 CREATED ORIGINAL TEST. 43-- RJW 11/05/86 REVISED COMMENTS. 44-- DHH 10/19/87 SHORTENED LINES CONTAINING MORE THAN 72 CHARACTERS. 45-- RDH 04/27/90 REVISED APPLICABILITY CRITERIA. 46-- BCB 10/03/90 REMOVED APPLICABILITY CRITERIA AND N/A => ERROR 47-- LINE. CHANGED EXTENSION FROM '.DEP' TO '.ADA'. 48 49WITH REPORT; 50PROCEDURE C45532J IS 51 52 USE REPORT; 53 54 MIN_WORD_LENGTH : CONSTANT := 32; -- MUST BE EVEN & >= 6 55 FULL_SCALE : CONSTANT := 2 ** (MIN_WORD_LENGTH - 1); 56 FORTH : CONSTANT := FULL_SCALE / 4; 57 A_THIRD : CONSTANT := FULL_SCALE / 3; 58 DEL1 : CONSTANT := 0.5 / FULL_SCALE; 59 TYPE FX_0P5 IS DELTA DEL1 * 1 RANGE -0.5 .. 60 0.5 - DEL1 * 1; 61 TYPE FX_1 IS DELTA DEL1 * 2 RANGE -1.0 .. 62 1.0 - DEL1 * 2; 63 TYPE FX_2 IS DELTA DEL1 * 4 RANGE -2.0 .. 64 2.0 - DEL1 * 4; 65 66BEGIN TEST ("C45532J", "FIXED POINT OPERATOR ""/""" ); 67 68 -------------------------------------------------- 69 70 -- CASE A) THE OPERATOR /, A, B, AND A / B ALL MODEL NUMBERS. 71 72A: DECLARE 73 A : FX_0P5 := 0.0; 74 B : FX_1 := 0.0; 75 RESULT_VALUE : FX_2 := 0.0; 76 LOWEST_ACCEPTABLE_VALUE : FX_2 := FX_2 (0.5); 77 HIGHEST_ACCEPTABLE_VALUE : FX_2 := FX_2 (0.5); 78 BEGIN 79 IF EQUAL (3, 3) THEN 80 A := FX_0P5 (0.125); -- A MODEL NUMBER 81 B := FX_1 (0.25); -- A MODEL NUMBER 82 END IF; 83 84 RESULT_VALUE := FX_2 (A / B); 85 86 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE) 87 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN 88 FAILED ("RESULT OF ""/"" OUTSIDE RESULT MODEL INTERVAL " 89 & "WHEN A, B, AND A / B ARE ALL MODEL NUMBERS"); 90 END IF; 91 END A; 92 93 -------------------------------------------------- 94 95 -- CASE B) THE OPERATOR /, A, B MODEL NUMBERS A / B NOT. 96 97B: DECLARE 98 A : FX_0P5 := 0.0; 99 B : FX_0P5 := 0.0; 100 RESULT_VALUE : FX_1 := 0.0; 101 LOWEST_ACCEPTABLE_VALUE : FX_1 102 := FX_1 (2 * DEL1 * A_THIRD); 103 HIGHEST_ACCEPTABLE_VALUE : FX_1 104 := FX_1 (2 * DEL1 * (A_THIRD + 1) ); 105 BEGIN 106 IF EQUAL (3, 3) THEN 107 A := FX_0P5 (DEL1 * 1); -- A MODEL NUMBER 108 B := FX_0P5 (DEL1 * 3); -- A MODEL NUMBER 109 END IF; 110 111 RESULT_VALUE := FX_1 (A / B); 112 113 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE) 114 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN 115 FAILED ("RESULT OF ""/"" OUTSIDE RESULT MODEL INTERVAL " 116 & "WHEN A, B MODEL NUMBERS A / B NOT"); 117 END IF; 118 END B; 119 120 -------------------------------------------------- 121 122 -- CASE C) THE OPERATOR /, USING NO MODEL NUMBERS 123 124C: DECLARE 125 A : FX_1 := 0.0; 126 B : FX_1 := 0.0; 127 RESULT_VALUE : FX_0P5 := 0.0; 128 LOW_COUNT : CONSTANT := 2 * A_THIRD; 129 -- := (2 * FULL_SCALE * (2 * FORTH + 0)) 130 -- / (6 * FORTH + 2); 131 HIGH_COUNT : CONSTANT := 2 * A_THIRD + 4; 132 -- := (2 * FULL_SCALE * (2 * FORTH + 2)) 133 -- / (6 * FORTH + 0); 134 LOWEST_ACCEPTABLE_VALUE : FX_0P5 135 := FX_0P5 (DEL1 * LOW_COUNT ); 136 HIGHEST_ACCEPTABLE_VALUE : FX_0P5 137 := FX_0P5 (DEL1 * HIGH_COUNT ); 138 BEGIN 139 IF EQUAL (3, 3) THEN -- A AND B NOT MODEL NUMBERS 140 A := FX_1 (DEL1 * (2 * FORTH + 1)); 141 B := FX_1 (DEL1 * (6 * FORTH + 1)); 142 END IF; 143 144 RESULT_VALUE := FX_0P5 (A / B); 145 146 IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE) 147 OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN 148 FAILED ("RESULT OF ""/"" OUTSIDE RESULT MODEL INTERVAL " 149 & "WHEN USING NO MODEL NUMBERS"); 150 END IF; 151 END C; 152 153 -------------------------------------------------- 154 155 156 RESULT; 157 158END C45532J; 159